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March 13, 1945. J. G. CURRY 2,371,225

EXTRUDER Original Filed Dec. 15, 1941 2 Sheets-Sheet 1 2a INVENTOR. Joseph Curry ATTORNEYS March 13, 1945. J. G. CURRY EXTRU'DER Original Filed Dec. 15, 1941 2 Sheets-Sheet 2 .9. a INVENTOR. J a h 03 B yo vwrly WITNESSES.-

patented an. i

arrrarmm 3088151121 Gt i i a San Antonio, "ilen.

3 Cias.

The present invention relates to machines for making filling containing products such as tamales. And the present application is a division of my application Serial No. 423,095, filed December 15, 1941.

An object of the invention is the provision of a machine designed to produce filling containing food products and the like rapidly and of uniform character.

Another object of the invention is the provision of a machine of the aforesaid character which is relatively simple and durable in construction and efficient in operation.

Other objects and advantages of the invention will become apparent as the description progresses.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate corresponding parts throughout:

Figure l is a vertical sectional view through the machine with parts broken away to illustrate the interior construction,

Figure 2 is a top plan view of the machine with parts broken away to illustrate lower structure.

Figure 3 is a vertical sectional view through the machine taken at right angles to the view of Figure 1,

Figure 4 is a transverse section through the machine taken on line 4-4 of Figure 3,

Figure 5 is a transverse section through a lower part of the machine taken on line 5-0 of Figure 3,

Figure 6 is a perspective view of a part of the machine structure with a portion thereof broken away,

Figure 7 is a perspective view of one of the pistons,

Figure 8 is a perspective view 01' another piston or the machine, and

Figure 9 is an enlarged detail sectional view of a piston rod connection.

Referring to the drawings, wherein for the purpose of illustration is shown a preferred example of the invention, I0 designates a support ring normally assuming a horizontal position and provided with an upstanding annular flange I2. This ring is designed to support thereon and within the flange a hollow cylindrical body I4. A plurality of, in the present example 4, legs I0 secured to and depending from the ring I0 serve to support the latter above a table, bench or the like. At diametrically opposed parts of the ring I0 are provided a pair or protruding ears I0 and 20. the former having a bore vertically therethrough and the latter provided with a slot err tending transversely inward from one side edge.

On the ears of the support ring is mounted a vertically disposed frame 22 embodying a pair or vertical bars 2t interconnected at their upper ends by an upper transverse yoke member at and a lower connecting bar 28. The ear It, having the bore it, supports one of the vertical bars Ml which is connected to the ear by a bolt 82 threaded into the bottom end of the bar. The opposite ear 2%, having the slot M, supports the complementary vertical bar 2% having a bolt M threaded into its lower end and engaging the slot. This construction enables horizontal swinging of the frame 22 about the bolt 32. A screw 38 threaded horizontally into the ear 20 functions to releasably fasten the bolt 30 in the slot 30 of the ear it.

A screw M is. mounted for axial sliding movement through guide openings in the upper and lower transverse members 26 and 28 and is provided with a longitudinal straight groove 48 into which projects the shank of a key screw 50 to prevent rotation of the screw 44.

An interiorly threaded sleeve 52 rotatably mounted between the upper and lower cross members 20 and 20 threadedly engages the main screw 44 and is formed at its upper part with a beveled gear 54 in meshing engagement with a complementary beveled gear 50 fixed on the inner end portion of a horizontal shaft 58 joumaled on one side of the frame 22. The shaft 50 is manually rotatable through the medium of a hand crank 00 connected to the outer end thereof.

As shown to advantage at Figures 1 and 3, the bottom end of the body I4 is formed with an inwardly directed flange for a purpose which will be described hereinafter.

Removably associated with the body I4 is a head section I02 having a circular flange I04 disposed to seat upon the body flange 80. The head I02 is essentially bowl shaped and is provided with a circular outlet I I4 at one side thereof, this outlet being interiorly threaded to receive the inner threaded end or an extruding nozzle I00 extending horizontally from the outlet. A tubular duct I I0 depending vertically into the bowl of the body I02 has a threaded opening in the lower side portion in registration with the outlet H4 and has an outwardly projecting nozzle II2 threadedly connected thereto. As shown at Figure 3, the nozzle II2 has an interior diameter substantially smaller than the interior diameter or the nozzle I08 with the smaller nozzle mounted concentrically or the larger. The head member III-is also formed with a centraly disposed upstanding tube I it closed at the bottom within the bowl and open at the top. Projecting radially from the tube- Ill are a pair of partitions or wings I20 extending the full length of the tube in positions to divide the annular chamber between the tube and the circumferential wall of the body It into a major chamber I22 and a minor chamber I24. munication with the extruding duct IIII of relatively small diameter while the major chamber opens into the bottom bowl structure III. A flat piston I26 is mounted transversely in and conforms to the cross sectional area of the major chamber I22 and is mounted to reciprocate therein whilea second piston I32 conforming to the area of the minor chamber I24 reciprocates in the latter. These pistons may advantageously be covered by rubber facing as indicated at I" and I respectively. To the piston member I2! is secured the lower end of an upstanding piston rod I80 while a similarly disposed piston rod I 30 connects with the smaller piston I32. The upper ends of the piston rods are provided with circumferential grooves I40 and are slidably fitted in openings in the opposed end portions of a cross arm I" attached to the upper end of the main screw 44, for example in the manner shown at Figure I. A set screw 2 is threaded transversely through the cross arm to releasably engage the annular groove I40 of each piston rod for detachable connection of the rods with the cross arm.

To fill the respective chambers I22 and I2 with the material to be extruded and also for the purpose of cleaning the same, the frame I22 is swung from its normal position straddling the cylindrical body to an out-of-the-way position. In producing tamales the dough is placed in the major chamber I22 while the spiced meat is placed in the smaller chamber I24. By rotation of the crank 60 the main screw 44 is, through the operation of the beveled gears 54 and 58 lowered axially from its upraised position so as to cause simultaneous downward movement of the pistons I26 and I32. The piston I28 functions to force the dough downwardly in the dough chamber through the bottom of the extruding sections I02 and laterally through the nozzle I08. Simultaneously therewith the smaller piston forces the meat downwardly in the smaller chamber through the passage provided by the depending duct IIII and eventually discharges the same through the small nozzle II 2 into the central portion of the dough. Thus, a continuous discharge through The latter chamber is in comthe nozzles forms a product in which the meat filling is in the form of a center core in a cylindrical body of dough which may be cut in suitable lengths and prepared in a desired manner.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material, size,

shape and arrangement of parts may be resorted to without departing fromthe spirit of the invention or the' scope of the subjoined claims.

Having thus described my invention, I claim: 1. In a machine of the character described, a hollow body, a member disposed centrally of the body. partitions in the body dividing the chamber therein about the central member into a pair of separated chambers, a member forming a passage from one of said separated chambers and provided withan outlet, a discharge nozzle projecting from said outlet, a conduit leading from the other separated chamber having an outlet, a nozzle attached to and projecting from the last mentioned outlet concentrically with the first mentioned nozzle, and means for forcing material from said separated chambers through said nozzles.

2. In a machine of the character described, a hollow body, a member disposed centrally of the body, partitions in the body dividing the chamber therein about the'central member into a pair of separated chambers, a member forming a pas- .sage from one of said separated chambers and provided with an outlet, a discharge nozzle projecting from said outlet, a conduit leading from the other separated chamber having an outlet, a nozzle attached to and projecting from the last {mentioned outlet concentrically with the first mentioned nozzle, a piston mounted in each of said separated chambers for forcing material therefrom and through the nozzles, and mechanism for actuating said pistons.

1 3. In a device of the type described, an upright cylinder having an inwardly extending shoulder at its lower end, a head having a flange resting on said shoulder and provided with first and second coaxial nozzles, said head being provided with first and second chambers communicating with said cylinder, said head having an upstanding tubular member inside said cylinder, radial wings on said tubular member coacting with said cylinder to divide the latter into third and fourth chambers respectively communicating with said -flrst and second chambers, pistons slidable in said third and fourth chambers, a screw connected with said pistons to impart movement thereto longitudinally of said third and fourth chambers, and rotary means for imparting longitudinal movement to said screw, said screw being movable freely in said tubular member.

JOSEPH G. CURRY. 

